Meat chopper



(No Model.) 3 SheetsSheet 1.

E UBRIG MEAT CHOPPER.

N0. 484,525. Patented Oct. 18, 1892.

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3 Sheets-Sheet 2.

' (No Model.)

B UBRIG MEAT CHOPPER.

No. 484,525. Patented Oct. 18, 1892.

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(Nq Mode'L) No. 484,525. Patented 001:. 18, 1892.

UNITED STAT S PATENT QFFICE.

EMIL UBRIG, OF VVESTEND, NEAR BERLIN, GERMANY.

MEAT-CHOPPER.

SPECIFICATION forming part of Letters Patent No. 484,525, dated October 18, 1892.

Application filed January 20, 1891. Renewed February 18, 1892. Serial No. 421,937. (No model.)

Patented in Germany November 30, 1888, No. 48,956, and in England March '7, 1889, No. 4,024.

To all whom it may concern.-

Be it known that I, EMIL UBRIG, a subject of the Emperor of Germany, residing at VVestend, near Berlin, in the Empire of Germany, have invented new and useful Improvements in Meat-Choppers, (for which patents have been granted in Great Britain,No. 4,024,dated March 7, 1889, and in Germany, No. 48,956, dated November 30, 1888,) of which the following is a specification.

My invention relates to that class of meatchoppers or mincing-machiues wherein the meat or other material to be minced is intro duced in successive portions into a casing provided with removable knives, between which pass pins or studs on a rotating centralshaft, whereby the material is constantly pressed against the cutters, said pins or studs being arranged about the shaft after the manner of the thread of a screw, to the end that the material may be carried along toward the outlet and between each pair of cutters; and the object of my invention is to improve the operation of this character of machines,whereby the material pressed by the pins or studs down against the casing of the machine may be pressed against the knives in the course of the rotation and acted upon thereby.

My invention will be hereinafter fully described, and its novel features carefully defined in the claims.

In the accompanying drawings, illustrative of my invention, Figure l is a side elevation of a machine embodying my invention. Fig. 2 is a transverse section of said machine on the broken plane indicated by line 2 2 in Fig. 1. Fig. 3 is a-horizontal section of said machine, taken in the plane indicated by line 3 3 in Fig. 1. Fig. 4 is a detail View on a larger scale, which will be hereinafter described. Figs. 5 and 6 are transverse sectional views similar to Fig. 2, but on a larger scale, illustrating slight modifications in the form of the knives. These will be hereinafter described.

Referring primarily to Figs. 1, 2, 3, and 4, A is the cylindrical casing of the machine, which will be of cast-iron, provided at its one end with a hopper ct,opening through its crown to the knife or cutting chamber, and at its other end with an outlet at for the minced material. This casingis bypreference formed of two sections or halves, being divided on a horizontal .line through its axis, hinged together at one side, and provided at the opposite side with a catch or look as, Wherebythey may be locked firmly together while the machine is in use, and the lower section will by preference be provided with a flat base to be set upon a table or bench. In the opposite edges of these sections where they join one another are cut coinciding recesses or slits D D, which are cut to an equal depth in both the upper and lower sections, and into these slits are set the knives (Z, which are provided with squared ends (1 d which take into the recesses D D and project slightly out from the wall of the casing on the outside. The slits D in the sections of the casing, which are illustrated on a large scale in Fig. 4, are in each section equal in depth to about half the width of the extremities d d", in order to afford easy removal of the cutters or knives from the casing for purposes of cleansing and sharpening, and when the upper section is closed down upon the lower and locked by means of the clamp 00 the knives d are held firmly down into place, as will be readily understood.

6 is the central rotating shaft, journaled at e e in the casing and provided at one end with a crank c in order that it may be operated by manual power. Aboutthe periphery of shaft e where it passes through the cuttingchamber are arranged the radial pins or pegs b h, set therein, as above stated, after the fashion of the threads of a screw, in order that the primary cutting or slicing may require as little power as possible.

It will be readily understood that in the machine, as ordinarily constructed, the meat is first cut into slices equal in thickness to the distance between the two knives performing the cutting, each of which slices is carried around between the pair of knives by the pin 1) behind it, and, emerging from between them at the opposite side, falls upon the next pin 1), whereby itis pressed against the next pair of knives andagain cut. It-will also be readily understood that the mincing or cutting can only take place when the material is being pressed past the knives d by the pegs b, and this is of necessity buta short time, and the material is then pressed between the cutters and carried around between them.

My invention contemplates providing the knives d with two or more cutting-surfaces d and (1 whereby the points at which cutting may take place will be increased and the amount of work done by the machine will be likewise increased. As seen in Fig. 2, the knives d are provided in the ordinary manner with cutting-edges d on their inner edges, or that face nearer the central shaft e, and at their opposite or outer edges they are scalloped out between the extremities d and d to form three cutting-surfaces d of curved form, the knife being at the end of each cutting-surface carried down against the inner circumference of the lower section of the casing. By this means the cutting will be performed not only by the cutters d, but at the various cuttingsurfaces d along the bottom of the casing A, the pressure of the pins 11 causing the material at the bottom of the casing between the cutters to spread out through the openings in the knives, and as the pins pass the descending edges of the cutting-surfaces the material will again be cut, as will be readily understood. The construction seen in Fig. 5 is precisely the same, with the exception that the cutting-edges are extended over about two-thirds of the inner circumference of the casing A. In Fig. 6 the knives d are provided with but two cuttingedges 01 and d on their inner and outer faces, respectively, and recesses f are formed in the lower section of the casing, the cutting edge (1 touching the casing at points between these recesses. I prefer to form the cutters d as illustrated in Fig. 5that is, with the lower cutting-surfaces curved and carried over about two-thirds of the inner circumference of the casing-es this gives the maximum amount of work.

Having thus described my invention, I claim 1. In a mincing-machine, the combination, with the casin g A, provided with an inlet and outlet for the material to be minced, said casing formed in two sections and provided withcoincidingaperturesD along the joining faces of said sections, of the removable knives d, set in said apertures, and the extremities of said knives projecting from said apertures when the sections are separated,whereby they may be readily removed, and the central rotating shaft e, provided with pegs or studs 1), adapted to pass, as the shaft is rotated, between the knives d, substantially as set forth.

2. In a mincing-machine, the combination, with the casing A, of the central rotating shaft e, provided with pegs or studs b b, and the knives d, set in the casing and provided with two or more cutting-surfaces, said pegs 17 passing, as shaft 6 is rotated, between the several knives d, substantially as and for the purposes set forth.

3. In a mincing-machine, the combination, with the casing A, of the central rotating shaft e, provided with pegs b 1), arranged about its surface, and the knives d, set in the said casing, said pegs 6 serving as the shaft e is rotated to force the material against and between the several knives d d, said knives being provided with two or more cuttingedges d d both of said cutting-edges being arranged at an angle with the path in which said pegs I) move, as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

EMIL UBRIG.

Witnesses:

JOHN OSBORN TONKIN, RUD. MICHAELIS. 

